Straight hosiery-frame.



F. CECKA.

STRAIGHTHOS IERY FRAME. APPLICATION FILE-D D50. 8. 1913.

1,219,251, Q Patented Mar. 13, 1917 I viding FRANZ CECKA, or CHEMNITZ,

GERMANY, ASSIGNOR TO SALZER MASCHINENFABRIK, AKTIENGESELLSCHAFT,

THE FIRM OF SCHUBERT & 0F CHEMNITZ, GERMANY.

STRAIGHT HOSIERY-FRAME.

Specification of Letters Patent.

Patented Mar. 1.3, 1917.

Application filed December 8, 1913. Serial No. 805,328.

To all whom it may concern:

Be it known that I, FRANZ CEoKA, a citizen of the German Empire,residing at Chemnitz, in the Kingdom of Saxony, Germany, have inventedcertain new and useful Improvements in Straight Hosiery-Frames; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

My invention relates to improvements in straight hosiery frames, andmore particularl in hosiery frames, in which stop or retarc ing membersare provided for retarding the speed of the thread guides. A frame ofthis class is describedin the patent of the United States toLieberknecht, N r. 981,663, of January 17, 1911. As described in theSaid patent the object of the retarding or stop members is to soften theshocks or blows which are produced when the thread guide bars strike ontheir stops. As shown in the said patent the speed of the thread guidesis retarded by gradually reducing the speed almost to zero, as thethread guide bar approaches the end of its stroke.

I have discovered, that for practical purposes it is sufiicient toreduce the speed of the thread guide bars in a smaller degree, and moreparticularly to about one half the ordinary speed of the knittingoperation. Thereby I am enabled to provide more simple means forretarding the speed byconnecting the retarding means with the knit tingmechanism and constructing the same in such a way, that in knitting, theslur is carried along each time in the direction or the knittingoperation, so that'special mechanisms are avoided.

Therefore the object of the improvements is to provide retarding meansin a hosiery frame, which are very simple in construe-- tion andeffective in operation. With this object in view my invention consistsin proretarding means, in which the degree of the retardation remainsconstant and is the same at the end of the movement of the thread guidesas at the beginning of the retardation. In the practical constructionthe retarding means consists of a stop member or brake for the frameguide carrier, which is carried along in both knitting directions andwhich moves at a lower speed than the slur or thread guide bar,

the thread guide bar It.

and which is mounted in such a way,that it is overtaken by the memberwhich carries the frame guide bars along, and thereafter retards thesame.

For the purpose of explaining the invention two examples embodying thesame have been shown in the accompanying drawlng, in which the sameletters of reference have been used in all the corresponding parts. Insaid draw1ng Figure l is a front view of a part of the mechanism of ahosiery frame provided with my improved retarding mechanism, and

Fig. 2, is a similar view, showing a modifiviews to indicate cation ofthe invention.

member consists of a bar f secured to brackets f mounted on the bar a.The bar f is frictionally engaged by an arm 9 which is adapted to carryalong the thread guide bar h. The said carrying mechanism depends on themovement of the knitting mechanism,

and the same speed is imparted thereto as to the knitting mechanism, andthe said speed is transmitted to the thread guide bar 71 The mechanismso far described is known in hosiery frames. In the example shown inFig. 1 my improved retarding mechanism connected with the knittingmechanism consists of a rod Z, which is mounted for reciprocationinlongitudinal direction in suitable bearings m, and which is connected bya link n with a rocking lever 0 which is suspended from a relativelyfixed bearing bracket p and is connected with the slur' bar a by a linkq. During the knitting operation the pivot 7' of the link 9 isreciprocated the same distance as the'slur bar a, and it has the samespeed imparted thereto. If the link at is jointed to the lever 0 in themiddle thereof so as to divide the same into two parts of equal length,the bar Z moves onlyat one half-the speed of the bar a and her g, whichcarries the thread guidesalong overtakes a stop member s or 8 providedon the bar 1 which always moves in the same direction as the member 9and at a smaller Therefore the mem i speed. When the member has thusovertaken one of the stops, it is forced to assume the smaller speed ofthe bar Z, until it arrives at the end of the stroke of the thread guidewhich is limited by a fixed stop k. In order that the speed of themember 9 can thus be retarded it engages the bar f by friction, so thatit slides longitudinally of the bar 1. The same operation is performedin both knitting mechanisms, both retarding stops '8 and 8 beingalternately thrown into operation.

Instead of connecting the retarding mechanism with the knittingmechanism itself, it

may be connected with a special driving mechanism constructed forexample in a similar way as that of the knitting mechanism. Fig. 2 showsthis construction by way of example. As shown the link n which isconnected at one end to the bar Z is connect- .ed with its opposite endto a rocking lever d at the opposite end thereof. The rockingle'ver (lis operated from a cam b by means of a rod 0. The stroke imparted by thecam 22 to the bar Z is smaller than the stroke imparted to the bara.Therefore the bar Z is adapted to retard the movement of the mem-' her 9in the same way as has been described with reference to Fig. l.

I claim herein as my invention:

In a-hosieryframe, a reciprocable slur connecting bar, a thread guidebar frictionally connected with the latter, a stop member adapted toretard the movement of the thread guide bar, means for impartingreciprocating motion to the connecting bar, a rocking lever, aconnection between said connecting bar and a point of said lever, and aconnection between said stop member and another point nearer the pivotof said lever.

In testimony whereof I hereunto afiix my signature in the presence oftwo witnesses.

FRANZ CECKA.

Witnesses:

E, K. Foo'rn, HANS MIRGKE.

